From owner-freebsd-stable@FreeBSD.ORG Thu Jan 20 21:44:58 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BB65316A4CE for ; Thu, 20 Jan 2005 21:44:58 +0000 (GMT) Received: from smtp103.rog.mail.re2.yahoo.com (smtp103.rog.mail.re2.yahoo.com [206.190.36.81]) by mx1.FreeBSD.org (Postfix) with SMTP id 2553643D2F for ; Thu, 20 Jan 2005 21:44:58 +0000 (GMT) (envelope-from mikej@rogers.com) Received: from unknown (HELO cpe000103d44c07-cm000f9f7ae88c.cpe.net.cable.rogers.com) (mikej@69.193.222.195 with login) by smtp103.rog.mail.re2.yahoo.com with SMTP; 20 Jan 2005 21:44:57 -0000 Received: from 207.219.213.162 (proxying for unknown) (SquirrelMail authenticated user mikej); by cpe000103d44c07-cm000f9f7ae88c.cpe.net.cable.rogers.com with HTTP; Thu, 20 Jan 2005 16:44:59 -0500 (EST) Message-ID: <52406.207.219.213.162.1106257499.squirrel@207.219.213.162> In-Reply-To: <1106256780.582.5.camel@zappa.Chelsea-Ct.Org> References: <3aaaa3a0501181530975fecf@mail.gmail.com> <3aaaa3a050120105459f7d015@mail.gmail.com> <3aaaa3a050120111777ada357@mail.gmail.com> <1106256780.582.5.camel@zappa.Chelsea-Ct.Org> Date: Thu, 20 Jan 2005 16:44:59 -0500 (EST) From: "Mike Jakubik" To: "Paul Mather" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal cc: freebsd-stable@freebsd.org Subject: Re: CFLAGS=-O2 -pipe problems in RELENG_5 ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jan 2005 21:44:58 -0000 Paul Mather said: > On Thu, 2005-01-20 at 19:17 +0000, Chris wrote: >> what does -fno-strict-alias do? I cannot find it in man gcc > > It is a truncation of "-fno-strict-aliasing". The flag does not appear > to be described in the gcc man page, but is documented in the gcc info > page (search for "-fstrict-aliasing"). To quote the info page, > -fstrict-aliasing "allows the compiler to assume the strictest aliasing > rules applicable to the language being compiled. ..." Wouldn't we want strict aliasing then?